package exception;

import com.sun.xml.internal.ws.policy.privateutil.PolicyUtils;

import java.awt.*;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.sql.SQLException;

public class ThrowsDemo {
    public void dosome() throws IOException, AWTException {
    }

}
    class SubClass extends ThrowsDemo {

        //public void dosome(){}

  // public void dosome() throws IOException {}
  // public void dosome()throws FileNotFoundException{}
//public void dosome () throws SQLException{}

        //public void dosome() throws Exception { }// 异常不能比超类异常大。
    }